Preparation and Lithium Storage Properties of Hierarchical Hydrangea‐Like MoS2/C Composites. Issue 6 (11th April 2022)

• Record Type: Journal Article
• Authors: Wang, Xiaxia; Yang, Kai; Na, Ren; Liu, Xu; Shan, Zhongqiang; Wang, Shirong
• Is Part Of: Energy technology. Volume 10:Issue 6(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-04-11
• Subjects: batteries -- composite solvothermal -- lithium storage properties -- MoS2/C composites -- nanostructures; Energy development -- Periodicals; Power resources -- Periodicals; 333.79
• DOI: 10.1002/ente.202101136
• Languages: English
• ISSNs: 2194-4288

Abstract

Abstract : In this article, hierarchical hydrangea‐like MoS2 /C composites are synthesized through a simple one‐pot solvothermal method followed by heat treatment for the first time. The morphology and electrochemical performance of MoS2 /C are largely affected by the solvent composition and carbon content during the solvothermal process. The interlayer distance of few‐layer MoS2 is increased by the insertion of carbon layer for the unique hierarchical hydrangea‐like MoS2 /C nanostructure. The cycling performance of MoS2 /C is greatly improved because it takes advantage of both good conductivity and structural stability. When tested as an anode of a lithium‐ion battery, the results show that the reversible specific capacity of the MoS2 /C electrode is 853.1 mAh g −1 after 80 cycles at a current density of 200 mA g −1 with capacity retention of 98.4%. Especially, when tested under 500 mA g −1, the reversible specific capacity can reach to 780.6 mAh g −1 after 200 cycles. Abstract : A MoS2 /C composite is synthesized by a simple one‐pot solvothermal combined with a heat treatment method for the first time. The prepared MoS2 /C materials exhibit hierarchical hydrangea‐like morphology. The layers of MoS2 layers in the MoS2 /C demonstrates increased interlayer distance. The conductivity and electrochemical performance of MoS2 /C are improved compared to pure MoS2 .